Feeds

Hackers tap SCADA vuln search engine

'Shodan' pinpoints shoddy industrial controls

High performance access to file storage

A search engine that indexes servers and other internet devices is helping hackers to find industrial control systems that are vulnerable to tampering, the US Computer Emergency Readiness Team has warned.

The year-old site known as Shodan makes it easy to locate internet-facing SCADA, or supervisory control and data acquisition, systems used to control equipment at gasoline refineries, power plants and other industrial facilities. As white-hat hacker and Errata Security CEO Robert Graham explains, the search engine can also be used to identify systems with known vulnerabilities.

According to the Industrial Control Systems division of US CERT, that's exactly what some people are doing to discover poorly configured SCADA gear.

“The identified systems range from stand-alone workstation applications to larger wide area network (WAN) configurations connecting remote facilities to central monitoring systems,” the group wrote in an advisory (PDF) published on Thursday. “These systems have been found to be readily accessible from the internet and with tools, such as Shodan, the resources required to identify them has been greatly reduced.”

Besides opening up industrial systems to attacks that target unpatched vulnerabilities, the information provided by Shodan makes networks more vulnerable to brute-force attacks on passwords, many of which may still use factory defaults, CERT warned. The organization advised admins to tighten security by:

  • Placing all control systems assets behind firewalls, separated from the business network
  • Deploying secure remote access methods such as Virtual Private Networks (VPNs) for remote access
  • Removing, disabling, or renaming any default system accounts (where possible)
  • Implementing account lockout policies to reduce the risk from brute forcing attempts
  • Implementing policies requiring the use of strong passwords
  • Monitoring the creation of administrator level accounts by third-party vendors

Short for Sentient Hyper-Optimized Data Access Network, Shodan contains a wealth of information about routers, servers, load balancers and other hardware attached to the internet. Its database was built by indexing metadata contained in the headers the hardware broadcasts to other devices. Searches can be filtered by port, hostname and country. In other words, not only can it identify a Solaris server, it can in many cases identify a Solaris server located in Pakistan that remains vulnerable to a known exploit.

CERT's warning comes a few month after reports that a worm called Stuxnet burrowed into SCADA systems controlling nuclear power plants. The attack, which many researchers speculate was intended to disrupt Iran's nuclear aspirations, demonstrated the success in which determined hackers have in penetrating control systems. ®

High performance access to file storage

More from The Register

next story
Obama allows NSA to exploit 0-days: report
If the spooks say they need it, they get it
Parent gabfest Mumsnet hit by SSL bug: My heart bleeds, grins hacker
Natter-board tells middle-class Britain to purée its passwords
Web data BLEEDOUT: Users to feel the pain as Heartbleed bug revealed
Vendors and ISPs have work to do updating firmware - if it's possible to fix this
OpenSSL Heartbleed: Bloody nose for open-source bleeding hearts
Bloke behind the cockup says not enough people are helping crucial crypto project
One year on: diplomatic fail as Chinese APT gangs get back to work
Mandiant says past 12 months shows Beijing won't call off its hackers
Call of Duty 'fragged using OpenSSL's Heartbleed exploit'
So it begins ... or maybe not, says one analyst
Experian subsidiary faces MEGA-PROBE for 'selling consumer data to fraudster'
US attorneys general roll up sleeves, snap on gloves
Oz bank in comedy Heartbleed blog FAIL
Bank: 'We are now safely patched.' Customers: 'You were using OpenSSL?'
prev story

Whitepapers

Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.